US6397989B2 - Apparatus for reducing harmonics and vibrations of a rotatable base piece - Google Patents
Apparatus for reducing harmonics and vibrations of a rotatable base piece Download PDFInfo
- Publication number
- US6397989B2 US6397989B2 US09/970,722 US97072201A US6397989B2 US 6397989 B2 US6397989 B2 US 6397989B2 US 97072201 A US97072201 A US 97072201A US 6397989 B2 US6397989 B2 US 6397989B2
- Authority
- US
- United States
- Prior art keywords
- vibrations
- base piece
- rotatable
- recited
- chain links
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B5/02—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning hubs or brake drums
Definitions
- the present invention pertains generally to reducing harmonics and vibrations of a rotatable base piece during operation of a machine. More particularly, the present invention pertains to an apparatus for reducing harmonics and vibrations of a rotatable rotor removably attached to a rotatable machine member. The present invention is particularly, but not exclusively, useful for reducing harmonics and vibrations of a brake rotor attached to a rotatable machine member during a turning procedure.
- Machine members Gravity, friction, velocity of rotation, and load forces are applied during operation to bearings, drive shafts, driven shafts, turning spindles, rotors, retaining devices, and other components of driving and driven machines (collectively, “machine members”).
- Circular rotation of shafts mounted in bearings gives rise to centripetal force, a force that is reacted to by centrifugal reaction.
- Machine members, and base pieces attached to machine members also may be subjected to significant loads about the geometric and rotational axes of a rotatable base piece.
- a torque may be formed whose vector along an x-axis may produce a rotation about the y-axis known as precession. Such rotation may generate significant angular velocities.
- forces, phenomena, torque and related effects may individually and collectively contribute to inducing nonuniform rotation of abase piece that has been attached to a rotatable shaft (collectively, “forces”).
- a machine used to refinish or resurface a brake rotor generally includes a driving motor, a driven or turning shaft, one or more retaining devices attached to the shaft for removably mounting a base piece such as a brake rotor on the one or more retaining devices, and one or more cutting tools that may engage a surface of a brake rotor to be refinished or resurfaced.
- the problem to be solved therefore, is reduction of harmonics and vibrations of a rotatable base piece that is removably attached to a rotatable machine member during operation of a machine. Further, what is needed is an apparatus for reducing harmonics and vibrations of a rotatable brake rotor, whether vented or unvented, that is useful for producing a more precisely turned and resurfaced brake rotor.
- One of the advantages of the novel apparatus for reducing harmonics and vibrations of a rotatable base piece, according to the present invention, is that the apparatus for reducing harmonics and vibrations of a rotatable base piece produces a more precisely turned and resurfaced brake rotor.
- Another advantage of the present invention is an apparatus for reducing harmonics and vibrations of a rotatable base piece that dampens noises and vibrations during operation of the machine on which the rotatable base piece is removably attached.
- the present invention also has the advantage not only of simplicity, but a simplicity that results in enhanced mechanical advantages over other apparatus suggested for solving the problems.
- the present invention requires fewer components than is required for other apparatus, yet achieves significantly enhanced reduction of noises, vibrations and harmonics during operation.
- the apparatus for reducing harmonics and vibrations of a rotatable base piece such as a brake rotor includes a series of chain links formed into a belt assembly.
- the two ends of the belt assembly are connectable to opposing ends of a connector.
- the connector includes, but is not limited to, a spring member that includes a trailing link and a following link.
- the present invention does not require more components than a belt assembly of chain links and a connector.
- a user of the present invention is not concerned with whether the apparatus are in an “up” or “down” configuration when installed for use. Rather, any contact facet of the collar of each plate forming the interconnected chain links may be placed in contact with the surface of a rotatable base piece. Elimination of additional elements to the apparatus contributes to achieving significantly more dampening of harmonics and vibrations of a rotatable base piece.
- each of the plurality of interconnected chain links is sized for maximum contact with the contact surface of the rotatable base piece, thus providing significantly more contact facets that in turn provide significantly more surfaces that rest on the contact surface of the rotatable base piece during operation.
- At least one more mechanical advantage is provided by including in an embodiment of the present invention nonidentical length arms extending monolithically from one or more spring members, with substantially semi-circular hook members.
- the nonidentical length arms with substantially semi-circular hook members contribute to quick but secure locking of the belt assembly to a variety of different sized rotatable base pieces having different diameters by locking securely around the rods in the chain links in the trailing link and the following link.
- the nonidentical length arms with substantially semi-circular hook members contribute to quick but secure locking of the belt assembly to a variety of rotatable base pieces having different diameters even if the user elects to skip one or more chain links in the belt assembly.
- the secure locking achieved by the user's ability to select from one or more nonidentical length spring members further contributes to maximum continuous contact between the collars of the plates of the chain links, and the contact surface of the rotatable base piece, resulting in greater reduction of vibrations and harmonics.
- Yet another advantage of the present invention is to provide a new and improved apparatus for reducing harmonics and vibrations of a rotatable base piece, such as a brake rotor, that may be easily and efficiently manufactured.
- Another advantage of the present invention is its durability and reliable construction.
- An even further advantage of an apparatus for reducing harmonics and vibrations of a rotatable base piece, according to the present invention is its low cost of manufacture with regard to both materials and labor.
- another advantage of the present invention is a apparatus for reducing harmonics and vibrations of a rotatable base piece and a method for reducing harmonics and vibrations of a rotatable base piece which respectively are easy to use and to practice, and which are cost effective for their intended purposes.
- An apparatus for reducing harmonics and vibrations of a rotatable base piece includes a plurality of chain links.
- the plurality of chain links are interconnected to form a belt assembly the two ends of which are not interconnected.
- the belt assembly has a leading end and a following end.
- the chain links are interconnected between the leading end and the following end.
- An apparatus for reducing harmonics and vibrations of a rotatable base piece also includes at least a spring member.
- the spring member is connectable to the leading end and the following end of the belt. The spring member assists in mounting the belt a assembly to a rotatable base piece.
- the belt assembly for example, may be attached to a rotatable brake rotor for reducing harmonics and vibrations of a rotatable base piece during rotation of the brake rotor.
- a system for reducing harmonics and vibrations of a rotatable base piece such as a rotor like a brake rotor needing refinishing or other machining, includes interconnected chain links that are smaller than conventional or common practice.
- the smaller chain links are selected and sized for maximum contact with the rotatable base piece. In part this is achieved by forming chain links having a plurality of plates.
- the plates have opposing sides.
- a collar is formed between the opposing sides of each of the plates.
- At least two bores are formed through the plurality of plates between the opposing sides.
- a rod is removably insertable through each of the bores.
- the rod holds the chain links together, or may be removed to shorten the length of the belt assembly formed by the interconnected chain links having a leading end and a following end.
- the collar includes at least two contact facets. The at least two contact facets are positionable against a contact surface on the base piece.
- one or more demountably selectively attachable connectors for securing the plurality of chain links to the rotatable base piece is provided, preferably a spring member.
- the spring members are sized to accommodate varying dimensions of the at least one contact surface of the rotatable base piece.
- the spring members include nonidentical length arms extending monolithically from the ends of the spring members. A semi-circular hook member is included at each end of the nonidentical length arms for demountably locking securely the open-ended belt assembly to the at least one contact surface.
- FIG. 1 is a perspective or isometric view of the apparatus for reducing harmonics and vibrations of a rotatable base piece
- FIG. 2A is a perspective view of a representative machine, not claimed in the present invention, having a machine member to which a base piece may be removably mounted, and on which the present invention is mountable;
- FIG. 2B is a perspective view of a representative machine, not claimed in the present invention, having a machine member to which a base piece may be removably mounted, but on which the present invention is not mounted;
- FIG. 3A is a perspective view of a plate of the present invention.
- FIG. 3B is a top view, partially broken away, of a portion of the belt assembly of the present invention.
- FIG. 4 is a perspective view of a spring member according to the present invention.
- an apparatus for reducing harmonics and vibrations of a rotatable base piece is shown and generally designated 10 .
- an apparatus for reducing harmonics and vibrations of a rotatable base piece 10 includes a plurality of chain links 12 .
- Plurality of chain links 12 are interconnected to form a belt assembly 14 .
- Belt assembly 14 has a leading end 16 and a following end 18 .
- Leading end 16 and following end 18 are not interconnected with each other.
- Chain links 12 are interconnected between leading end 16 and following end 18 .
- an apparatus for reducing harmonics and vibrations of a rotatable base piece 10 also includes means for releasing each of the plurality of chain links 12 from a trailing chain link 12 A or a following chain link 12 B, and from belt assembly 14 .
- the means for releasing each of the plurality of chain links 12 from a trailing chain link 12 A or a following chain link 12 B, and from belt assembly 14 is a releasable rod 20 .
- chain links 12 are made of metal.
- each of the plurality of chain links 12 may be made of a resin material.
- an apparatus for reducing harmonics and vibrations of a rotatable base piece also includes means for attaching belt assembly 14 to base piece 22 .
- the attaching means is a spring member 24 .
- Spring member 24 is formed with a first end 26 and a second end 28 .
- first end 26 and second end 28 are curved to facilitate engagement of first end 26 and second end 28 with a rod 20 ′ and rod 20 ′′.
- First end 26 of spring member 24 is engageable with leading end 16 of belt assembly 14
- second end 28 of spring member 24 is engageable with following end 18 of belt assembly 14 .
- base piece 22 is a brake rotor 22 ′′.
- a machine 30 used to refinish or resurface a brake rotor 22 ′ generally includes a driving motor 32 , a driven or turning shaft 34 , one or more retaining devices 36 attached to shaft 34 for removably mounting base piece 22 , such as brake rotor 22 ′ on one or more retaining devices 36 , and a cutting tool 38 that may reciprocally engage a surface 40 of brake rotor 22 ′ to be refinished or resurfaced.
- system for reducing harmonics and vibrations of a rotatable base piece 10 such as a rotor 22 ′ needing refinishing or other machining, includes interconnected chain links 12 that are smaller than conventional or common practice, and shorter in length.
- Chain links 12 are selected and sized for maximum contact with contact surface 40 of rotor 22 ′, as best shown in FIG. 2 B. In part this is achieved by forming chain links 12 having a plurality of plates 42 , as best shown by cross-reference between FIGS. 3A and 3B. Plates 42 have opposing sides 44 a,b .
- a collar 46 is formed between opposing sides 44 a,b of each of plates 42 .
- At least two bores 48 a,b are formed through plurality of plates 42 between opposing sides 44 a,b .
- Rods 20 a,b are removably insertable through each of bores 48 a,b .
- Rods 20 a,b hold plates 42 of chain links 12 together, or may be removed to shorten the length of interconnected chain links 12 that in combination form belt assembly 14 .
- Belt assembly 14 includes a leading end 16 and a following end 18 .
- Collar 46 includes at least two contact facets 50 a,b , as best shown in FIG. 3 A. The at least two contact facets 50 a,b are positionable against a surface 40 , as shown in FIG. 2 as contact surface 40 ′ on rotatable base piece 22 ′.
- belt assembly 14 may be placed in contact with contact surface 40 ′ of brake rotor 22 ′ by applying either face 52 a or 52 b to contact surface 40 ′ of brake rotor 22 ′, such that any contact facet 50 a,b of collar 46 of plate 42 is in contact with contact surface 40 ′ of rotor 22 ′.
- each of the plurality of interconnected chain links 12 is sized for maximum contact with contact surface 40 ′, thus providing significantly more contact with more contact facets 50 a,b , in turn providing a chain of contacts that rest on contact surface 40 ′ during operation.
- one or more demountably selectively attachable connectors 24 ′ for securing plurality of chain links 12 to rotatable base piece 22 .
- one or more demountably selectively attachable connectors 24 ′ is preferably a spring member 24 .
- Spring member 24 is sized to accommodate varying dimensions of contact surface 40 ′ of rotatable base piece 22 , including rotor 22 ′.
- spring member 24 includes nonidentical length arms 54 a,b extending monolithically from the ends of spring member 24 .
- one nonidentical length arm 54 a is shown to be shorter than nonidentical length arm 54 b in FIG. 4 .
- semi-circular hook member 56 a,b is included at each end of nonidentical length arm 54 a and 54 b for demountably locking each of semi-circular hook member 56 a,b securely around at least two rods 20 a,b respectively in trailing link 12 A and following link 12 B, thus securing belt assembly 14 to contact surface 40 ′.
- At least one mechanical advantage is provided by including in an embodiment of the present invention nonidentical length arms 54 a,b extending monolithically from one or more spring members 24 with substantially semi-circular hook members 56 a,b .
- Nonidentical length arms 54 a,b with substantially semi-circular hook members 56 a,b contribute to quick but secure attachment of belt assembly 14 to a variety of rotatable base pieces 22 having contact surface 40 ′ in varying lengths or diameters. Further, nonidentical length arms 54 a,b with substantially semi-circular hook members 56 a,b contribute to quick but secure locking of belt assembly 14 to a variety of rotatable base pieces having different diameters even if a user of the invention elects to skip one or more chain links 12 in belt assembly 14 .
- the secure locking achieved by the capability to select from one or more nonidentical length spring members 24 further contributes to maximum continuous contact between collar 46 in each of chain links 12 of plates 42 , and contact surface 40 ′ of rotatable base piece 22 , resulting in greater reduction of vibrations and harmonics.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
Claims (19)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/970,722 US6397989B2 (en) | 1999-02-12 | 2001-10-04 | Apparatus for reducing harmonics and vibrations of a rotatable base piece |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/249,514 US20010040079A1 (en) | 1999-02-12 | 1999-02-12 | Apparatus for reducing harmonics and vibrations of a rotating base piece |
US09/970,722 US6397989B2 (en) | 1999-02-12 | 2001-10-04 | Apparatus for reducing harmonics and vibrations of a rotatable base piece |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/249,514 Continuation-In-Part US20010040079A1 (en) | 1999-02-12 | 1999-02-12 | Apparatus for reducing harmonics and vibrations of a rotating base piece |
Publications (2)
Publication Number | Publication Date |
---|---|
US20020007995A1 US20020007995A1 (en) | 2002-01-24 |
US6397989B2 true US6397989B2 (en) | 2002-06-04 |
Family
ID=46278283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US09/970,722 Expired - Lifetime US6397989B2 (en) | 1999-02-12 | 2001-10-04 | Apparatus for reducing harmonics and vibrations of a rotatable base piece |
Country Status (1)
Country | Link |
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US (1) | US6397989B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7765667B1 (en) | 2006-03-01 | 2010-08-03 | Sun Systems, Inc. | Reversible flange plate |
US7905165B1 (en) | 2006-03-01 | 2011-03-15 | Sun Systems, Inc. | Adapter assembly for hubbed rotor |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109169625A (en) * | 2018-11-19 | 2019-01-11 | 国网黑龙江省电力有限公司鹤岗供电公司 | Movable scarer |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3611830A (en) * | 1969-11-03 | 1971-10-12 | Ammco Tools Inc | Silencer band |
US3774473A (en) * | 1972-10-02 | 1973-11-27 | W Mitchell | Vibration dampener |
US3774472A (en) * | 1972-10-02 | 1973-11-27 | Ammco Tools Inc | Vibration dampener |
US4043431A (en) * | 1974-11-29 | 1977-08-23 | Fmc Corporation | Vibration damper and method of making the same |
US4126066A (en) * | 1977-09-12 | 1978-11-21 | Kwik-Way Manufacturing Company | Brake lathe harmonic damper |
US4656899A (en) * | 1986-04-28 | 1987-04-14 | Ammco Tools, Inc. | Silencer band |
US4678066A (en) * | 1985-08-29 | 1987-07-07 | Heintz Robert J | Vibration dampener |
US5095786A (en) * | 1990-11-13 | 1992-03-17 | Fmc Corporation | Method and apparatus for dampening brake lathe vibration |
US5215616A (en) * | 1986-03-14 | 1993-06-01 | Envirex Inc. | Method for manufacturing a high strength, non-metallic transmission chain |
US5262599A (en) * | 1992-06-19 | 1993-11-16 | Aguirre Sr Tom L | Brake rotor silencer apparatus |
US5855257A (en) * | 1996-12-09 | 1999-01-05 | Chrysler Corporation | Damper for brake noise reduction |
US6112865A (en) * | 1996-12-09 | 2000-09-05 | Chrysler Corporation | Damper for brake noise reduction (brake drums) |
US6131487A (en) * | 1995-02-03 | 2000-10-17 | Luk Lamellen Und Kupplungsbau Gmbh | Torsional vibration damper |
-
2001
- 2001-10-04 US US09/970,722 patent/US6397989B2/en not_active Expired - Lifetime
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3611830A (en) * | 1969-11-03 | 1971-10-12 | Ammco Tools Inc | Silencer band |
US3774473A (en) * | 1972-10-02 | 1973-11-27 | W Mitchell | Vibration dampener |
US3774472A (en) * | 1972-10-02 | 1973-11-27 | Ammco Tools Inc | Vibration dampener |
US4043431A (en) * | 1974-11-29 | 1977-08-23 | Fmc Corporation | Vibration damper and method of making the same |
US4126066A (en) * | 1977-09-12 | 1978-11-21 | Kwik-Way Manufacturing Company | Brake lathe harmonic damper |
US4678066A (en) * | 1985-08-29 | 1987-07-07 | Heintz Robert J | Vibration dampener |
US5215616A (en) * | 1986-03-14 | 1993-06-01 | Envirex Inc. | Method for manufacturing a high strength, non-metallic transmission chain |
US4656899A (en) * | 1986-04-28 | 1987-04-14 | Ammco Tools, Inc. | Silencer band |
US5095786A (en) * | 1990-11-13 | 1992-03-17 | Fmc Corporation | Method and apparatus for dampening brake lathe vibration |
US5262599A (en) * | 1992-06-19 | 1993-11-16 | Aguirre Sr Tom L | Brake rotor silencer apparatus |
US6131487A (en) * | 1995-02-03 | 2000-10-17 | Luk Lamellen Und Kupplungsbau Gmbh | Torsional vibration damper |
US5855257A (en) * | 1996-12-09 | 1999-01-05 | Chrysler Corporation | Damper for brake noise reduction |
US6112865A (en) * | 1996-12-09 | 2000-09-05 | Chrysler Corporation | Damper for brake noise reduction (brake drums) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7765667B1 (en) | 2006-03-01 | 2010-08-03 | Sun Systems, Inc. | Reversible flange plate |
US7905165B1 (en) | 2006-03-01 | 2011-03-15 | Sun Systems, Inc. | Adapter assembly for hubbed rotor |
Also Published As
Publication number | Publication date |
---|---|
US20020007995A1 (en) | 2002-01-24 |
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Owner name: SUN STANDARD, INC., A NEW MEXICO CORPORATION, NEW Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TUROS, KENNETH;REEL/FRAME:012229/0881 Effective date: 20011003 |
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